Improve the performance of the initialisation of vectors at creation time.
This branch is created specifically for https://rdotnet.codeplex.com/workitem/56
Refactor and implement faster transfer from R to .NET.
Application for measurements; minimal unit tests for integer/numeric vectors.
More needed!
Improve performance for matrix conversions
Add the very minimum of unit tests for matrix conversion
Expand on unit tests for the correctness of data marshalling
Add some of the tests for checking the behavior on NA values
Reproduction for https://rdotnet.codeplex.com/workitem/54
Reproduction for https://rdotnet.codeplex.com/workitem/54